Johnny Depp considers a date for the Diaries

The actor's production company, Infinitum Nihil, is among the developers bidding for rights to the Saci Lloyd novel.

Written as a first-hand account of the impact of climate change and the changing environment, the book has proved popular since its 2008 release, with Lloyd set to release a sequel, The Carbon Diaries 2017, in January.

Lloyd, who works as a teacher at Newham Sixth Form College, has already reached an agreement with television firm Company Pictures to develop a small-screen series of her debut novel, but the book now looks set to be made into a feature film.

Depp has had a string of commercial and critical successes as an actor, including the Disney franchise Pirates of the Caribbean, for which he was nominated as Best Actor at the Academy Awards - one of three times he has been shortlisted.

He started Infinitum Nihil in 2004, with the production firm intended as a vehicle for Depp to pursue projects he could either produce or act in.